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Summary of Reclassifications Out of AOCI (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 30, 2017 | Dec. 31, 2016 | Jan. 02, 2016
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Derivative instruments net of tax |  | $ (1,367) | $ (3,399) | $ (5,413)
Reclassification From AOCI, Current Period Net Of Tax | [1] | (8,150) | (11,800) | (7,952)
Derivative Instruments |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Derivative instruments before tax | [1] | (2,222) | (5,528) | (8,801)
Reclassification from AOCI, Derivative instruments tax benefit | [1] | 855 | 2,129 | 3,388
Reclassification from AOCI, Derivative instruments net of tax | [1] | (1,367) | (3,399) | (5,413)
Reclassification From AOCI, Current Period Net Of Tax |  | (1,367) | (3,399) |
Pension and postretirement plans, prior service credits |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Current Period, before Tax | [1],[2] | (175) | (175) | 267
Pension and postretirement plans, Settlement losses |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Current Period, before Tax | [1],[2] | (4,649) | (6,646) |
Pension and postretirement plans, actuarial losses |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Current Period, before Tax | [1],[2] | (5,858) | (6,840) | (4,395)
Accumulated Defined Benefit Plans Adjustment |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Current Period, before Tax | [1] | (10,682) | (13,661) | (4,128)
Reclassification from AOCI, Current Period, Tax benefit | [1] | 3,899 | 5,260 | 1,589
Reclassification From AOCI, Current Period Net Of Tax | [1] | (6,783) | (8,401) | (2,539)
Interest Rate Contracts | Derivative Instruments |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Derivative instruments before tax | [1] | (142) | (221) | (250)
Commodity Contract | Derivative Instruments |  |  |  |
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Reclassification from AOCI, Derivative instruments before tax | [1],[3] | (2,080) | (5,307) | (8,551)
Reclassification from AOCI, Derivative instruments tax benefit |  | 801 | 2,043 | 3,292
Reclassification from AOCI, Derivative instruments net of tax |  | $ (1,279) | $ (3,264) | $ (5,259)
[1] | Amounts in parentheses indicate debits to determine net income.
[2] | These items are included in the computation of net periodic pension cost. See Note 21, Postretirement Plans, for additional information.
[3] | Amounts are presented as an adjustment to reconcile net income to net cash provided by operating activities on the Consolidated Statements of Cash Flows.

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